4 files changed, 15 insertions, 23 deletions
diff --git a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c
index 8d76afb87d87..17af4e0fd5f8 100644
--- a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c
+++ b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c
@@ -1,22 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * cros_ec_sensors - Driver for Chrome OS Embedded Controller sensors.
  *
  * Copyright (C) 2016 Google, Inc
  *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
  * This driver uses the cros-ec interface to communicate with the Chrome OS
  * EC about sensors data. Data access is presented through iio sysfs.
  */
 
-#include <linux/delay.h>
 #include <linux/device.h>
 #include <linux/iio/buffer.h>
 #include <linux/iio/common/cros_ec_sensors_core.h>
@@ -30,7 +21,6 @@
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/slab.h>
-#include <linux/sysfs.h>
 
 #define CROS_EC_SENSORS_MAX_CHANNELS 4
 
diff --git a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c
index 414cc43c287e..719a0df5aeeb 100644
--- a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c
+++ b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c
@@ -1,16 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * cros_ec_sensors_core - Common function for Chrome OS EC sensor driver.
  *
  * Copyright (C) 2016 Google, Inc
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #include <linux/delay.h>
@@ -25,7 +17,6 @@
 #include <linux/mfd/cros_ec_commands.h>
 #include <linux/module.h>
 #include <linux/slab.h>
-#include <linux/sysfs.h>
 #include <linux/platform_device.h>
 
 static char *cros_ec_loc[] = {
@@ -269,6 +260,17 @@ static int cros_ec_sensors_read_data_unsafe(struct iio_dev *indio_dev,
 	return 0;
 }
 
+/**
+ * cros_ec_sensors_read_lpc() - read acceleration data from EC shared memory.
+ * @indio_dev: pointer to IIO device.
+ * @scan_mask: bitmap of the sensor indices to scan.
+ * @data: location to store data.
+ *
+ * Note: this is the safe function for reading the EC data. It guarantees
+ * that the data sampled was not modified by the EC while being read.
+ *
+ * Return: 0 on success, -errno on failure.
+ */
 int cros_ec_sensors_read_lpc(struct iio_dev *indio_dev,
 			     unsigned long scan_mask, s16 *data)
 {
diff --git a/drivers/iio/common/ms_sensors/Kconfig b/drivers/iio/common/ms_sensors/Kconfig
index b28a92b97cf9..89398d0afc0d 100644
--- a/drivers/iio/common/ms_sensors/Kconfig
+++ b/drivers/iio/common/ms_sensors/Kconfig
@@ -3,4 +3,4 @@
 #
 
 config IIO_MS_SENSORS_I2C
-        tristate
+	tristate
diff --git a/drivers/iio/common/ssp_sensors/ssp_iio.c b/drivers/iio/common/ssp_sensors/ssp_iio.c
index 645f2e3975db..e38f704d88b7 100644
--- a/drivers/iio/common/ssp_sensors/ssp_iio.c
+++ b/drivers/iio/common/ssp_sensors/ssp_iio.c
@@ -81,7 +81,7 @@ int ssp_common_process_data(struct iio_dev *indio_dev, void *buf,
 			    unsigned int len, int64_t timestamp)
 {
 	__le32 time;
-	int64_t calculated_time;
+	int64_t calculated_time = 0;
 	struct ssp_sensor_data *spd = iio_priv(indio_dev);
 
 	if (indio_dev->scan_bytes == 0)